{"asOf":"2026-07-27T13:44:30.265Z","block":"900-999 MOUNTAIN ST","blockUrl":"https://philadelphia.blockreport.homes/block/900-999-mountain-st","address":"921 MOUNTAIN ST","parcelNumber":"012307010","source":"https://property.phila.gov/?p=012307010","ownerType":"owner-occupied","kind":"house","isHouse":true,"home":true,"commercial":false,"residential":true,"taxExempt":false,"institutional":false,"buildingCode":"O30","buildingCodeNew":"22","buildingClass":"ROW 2 STY MASONRY","buildingClassNew":"ROW TYPICAL","useLabel":"House","owner":"BLACKBURN CAITLIN STATIA","coOwner":null,"marketValue":602500,"landAssessment":120500,"improvementAssessment":482000,"livableArea":1712,"yearBuilt":1920,"lastSale":{"price":680000,"date":"2024-03-27T04:00:00Z"},"openViolations":0,"violations":[{"number":"VI-2021-068341","date":"2021-09-29","code":"A-302.10/2","title":"WORK NOT ACCORDING TO PLANS","status":"COMPLIED","resolutionDate":"2022-01-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-001476","date":"2022-01-11","code":"A-302.10/3","title":"WORK OUTSIDE OF SCOPE","status":"COMPLIED","resolutionDate":"2024-03-26","resolution":"COMPLIED - PERMIT OBTAINED"},{"number":"VI-2022-001477","date":"2022-01-11","code":"A-302.10/2","title":"WORK NOT ACCORDING TO PLANS","status":"COMPLIED","resolutionDate":"2024-03-26","resolution":"COMPLIED - PERMIT OBTAINED"},{"number":"VI-2022-080060","date":"2022-10-21","code":"9-3905","title":"VACANT STRUCTURE LICENSE","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - PERMIT OBTAINED"},{"number":"VI-2022-080061","date":"2022-10-21","code":"PM15-304.19V","title":"DOOR AND WINDOW VACANT","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-080062","date":"2022-10-21","code":"PM15-301","title":"VACANT STRUCTURE & LAND","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-080063","date":"2022-10-21","code":"PM15-304.2","title":"EXTERIOR STRUCTURE PROTECTIVE TREATMENT","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-080064","date":"2022-10-21","code":"PM15-901.1","title":"VACANT PROPERTIES","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-088629","date":"2022-11-28","code":"A-302.10/3","title":"WORK OUTSIDE OF SCOPE","status":"COMPLIED","resolutionDate":"2022-11-30","resolution":"COMPLIED - OWNER REPAIR"}],"violationCases":[{"number":"CF-2021-092435","type":"NOTICE OF VIOLATION","priority":"STANDARD","responsibility":"BUILDING INVESTIGATOR","status":"CLOSED","createdDate":"2021-09-22","completedDate":"2022-01-11","violations":[{"number":"VI-2021-068341","date":"2021-09-29","code":"A-302.10/2","title":"WORK NOT ACCORDING TO PLANS","status":"COMPLIED","resolutionDate":"2022-01-11","resolution":"COMPLIED - OWNER REPAIR"}]},{"number":"CF-2022-002211","type":"NOTICE OF VIOLATION","priority":"STANDARD","responsibility":"BUILDING INVESTIGATOR","status":"CLOSED","createdDate":"2022-01-11","completedDate":"2024-03-26","violations":[{"number":"VI-2022-001476","date":"2022-01-11","code":"A-302.10/3","title":"WORK OUTSIDE OF SCOPE","status":"COMPLIED","resolutionDate":"2024-03-26","resolution":"COMPLIED - PERMIT OBTAINED"},{"number":"VI-2022-001477","date":"2022-01-11","code":"A-302.10/2","title":"WORK NOT ACCORDING TO PLANS","status":"COMPLIED","resolutionDate":"2024-03-26","resolution":"COMPLIED - PERMIT OBTAINED"}]},{"number":"CF-2022-108100","type":"NOTICE OF VIOLATION","priority":"STANDARD","responsibility":"VENDING INVESTIGATOR","status":"CLOSED","createdDate":"2022-10-21","completedDate":"2023-02-11","violations":[{"number":"VI-2022-080060","date":"2022-10-21","code":"9-3905","title":"VACANT STRUCTURE LICENSE","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - PERMIT OBTAINED"},{"number":"VI-2022-080061","date":"2022-10-21","code":"PM15-304.19V","title":"DOOR AND WINDOW VACANT","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-080062","date":"2022-10-21","code":"PM15-301","title":"VACANT STRUCTURE & LAND","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-080063","date":"2022-10-21","code":"PM15-304.2","title":"EXTERIOR STRUCTURE PROTECTIVE TREATMENT","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"},{"number":"VI-2022-080064","date":"2022-10-21","code":"PM15-901.1","title":"VACANT PROPERTIES","status":"COMPLIED","resolutionDate":"2023-02-11","resolution":"COMPLIED - OWNER REPAIR"}]},{"number":"CF-2022-118336","type":"NOTICE OF VIOLATION","priority":"STANDARD","responsibility":"BUILDING INVESTIGATOR","status":"CLOSED","createdDate":"2022-11-28","completedDate":"2022-11-30","violations":[{"number":"VI-2022-088629","date":"2022-11-28","code":"A-302.10/3","title":"WORK OUTSIDE OF SCOPE","status":"COMPLIED","resolutionDate":"2022-11-30","resolution":"COMPLIED - OWNER REPAIR"}]}],"violYears":[{"y":2021,"n":1,"worst":null},{"y":2022,"n":8,"worst":null}],"investigations":[{"caseNumber":"CF-2021-092435","date":"2021-09-29","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-002211","date":"2022-01-11","type":null,"status":"FAILED"},{"caseNumber":"CF-2021-092435","date":"2022-01-11","type":null,"status":"PASSED"},{"caseNumber":"CF-2022-108100","date":"2022-10-21","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-118336","date":"2022-11-28","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-118336","date":"2022-11-30","type":null,"status":"PASSED"},{"caseNumber":"CF-2022-002211","date":"2022-12-07","type":null,"status":"FAILED"},{"caseNumber":"CF-2022-108100","date":"2023-02-11","type":null,"status":"PASSED"},{"caseNumber":"CF-2022-002211","date":"2024-03-26","type":null,"status":"PASSED"}],"inspYears":[{"y":2021,"fails":1,"passes":0},{"y":2022,"fails":4,"passes":2},{"y":2023,"fails":0,"passes":1},{"y":2024,"fails":0,"passes":1}],"taxOwed":0,"taxSnapshot":{"available":true,"asOf":"2022-06","matched":false},"taxDelinquencySnapshotAsOf":"2022-06","taxDelinquencySnapshotAvailable":true,"lat":39.92881346198832,"lng":-75.16086611261838,"geom":{"type":"Polygon","coordinates":[[[-75.160855017,39.928734815],[-75.160910855,39.928742072],[-75.160877026,39.928892497],[-75.160821445,39.928884536],[-75.160855017,39.928734815]]]},"liDistrict":"SOUTH","certifications":[],"cityRecordAvailability":{"violations":true,"investigations":true,"appeals":true,"certifications":true,"permits":true,"licenses":true},"zip":"19148","beds":3,"baths":2,"stories":2,"lotArea":864,"zoning":"RSA5","grade":"C","basement":"A","heater":"A","centralAir":true,"extCond":"3","intCond":"2","garage":null,"homestead":false,"mail":"921 MOUNTAIN ST, PHILADELPHIA PA, 19148","mailOut":false,"appeals":[],"taxYears":[],"taxNet":0,"taxLien":false,"taxLedgerThrough":2016,"taxLedgerAvailable":true,"timesSold":2,"abated":true,"assessmentExemption":true,"exemptionBasisVerified":false,"valueSeries":[{"y":2016,"v":207400,"taxable":81300,"land":16762,"improvement":190638,"taxableLand":16762,"taxableImprovement":64538,"exemptLand":0,"exemptImprovement":126100},{"y":2017,"v":207400,"taxable":81300,"land":38369,"improvement":169031,"taxableLand":38369,"taxableImprovement":42931,"exemptLand":0,"exemptImprovement":126100},{"y":2018,"v":207400,"taxable":81300,"land":38369,"improvement":169031,"taxableLand":38369,"taxableImprovement":42931,"exemptLand":0,"exemptImprovement":126100},{"y":2019,"v":216100,"taxable":81300,"land":39978,"improvement":176122,"taxableLand":39978,"taxableImprovement":41322,"exemptLand":0,"exemptImprovement":134800},{"y":2020,"v":234200,"taxable":81300,"land":43327,"improvement":190873,"taxableLand":43327,"taxableImprovement":37973,"exemptLand":0,"exemptImprovement":152900},{"y":2021,"v":234200,"taxable":81300,"land":43327,"improvement":190873,"taxableLand":43327,"taxableImprovement":37973,"exemptLand":0,"exemptImprovement":152900},{"y":2022,"v":234200,"taxable":234200,"land":43327,"improvement":190873,"taxableLand":43327,"taxableImprovement":190873,"exemptLand":0,"exemptImprovement":0},{"y":2023,"v":258900,"taxable":258900,"land":51780,"improvement":207120,"taxableLand":51780,"taxableImprovement":207120,"exemptLand":0,"exemptImprovement":0},{"y":2024,"v":258900,"taxable":258900,"land":51780,"improvement":207120,"taxableLand":51780,"taxableImprovement":207120,"exemptLand":0,"exemptImprovement":0},{"y":2025,"v":641900,"taxable":220000,"land":128380,"improvement":513520,"taxableLand":128380,"taxableImprovement":91620,"exemptLand":0,"exemptImprovement":421900},{"y":2026,"v":641900,"taxable":220000,"land":128380,"improvement":513520,"taxableLand":128380,"taxableImprovement":91620,"exemptLand":0,"exemptImprovement":421900},{"y":2027,"v":602500,"taxable":206497,"land":120500,"improvement":482000,"taxableLand":120500,"taxableImprovement":85997,"exemptLand":0,"exemptImprovement":396003}],"taxNow":3080,"familyHeld":false,"lastTransferNominal":false,"permits":[{"number":"ZP-2021-007337","date":"2021-08-06","work":"New construction, addition, GFA change","type":"Zoning","description":"Zoning Permit","status":"Issued","completedDate":null,"scope":"FOR THE ERECTION OF AN ADDITION WITH A FRONT SETBACK ABOVE AN EXISTING ATTACHED STRUCTURE. ADDITION TO INCLUDE ROOF DECK AND ROOF DECK ACCESS STRUCTURE. SIZE AND LOCATION AS SHOWN IN APPLICATION/PLAN."},{"number":"RP-2021-009650","date":"2021-08-24","work":"Addition and/or Alteration","type":"Residential Building","description":"Residential Building Permit","status":"Completed","completedDate":"2024-03-22","scope":"RENOVATIONS FOR THE ERECTION OF AN ADDITION ABOVE AN EXISTING ATTACHED STRUCTURE. ADDITION TO INCLUDE ROOF DECK AND ROOF DECK ACCESS STRUCTURE. SIZE AND LOCATION AS SHOWN IN APPLICATION/PLAN.**AMENDMENT:ADDING INTERIOR STUD WALLS AND LEDGER BOARDS FOR ADDITONAL FLOOR SUPPORT. **"},{"number":"EP-2021-013593","date":"2021-12-03","work":"Addition and/or Alteration","type":"Electrical","description":"Electrical Permit","status":"Completed","completedDate":"2024-01-03","scope":"Whole house renovation project. New 200A service. All new wiring throughout compliant with 2014 NEC. Recessed lighting throughout. Includes finished basement."},{"number":"MP-2023-000102","date":"2023-01-10","work":"New Construction","type":"Mechanical","description":"Mechanical / Fuel Gas Permit","status":"Completed","completedDate":"2024-03-22","scope":"EZ PERMIT DUCTWORK & WARM-AIR APPLIANCES - For the installation of New Ductwork, Registers/Grilles/Diffusers, and Warm-Air Appliances as per attached standards. Deviations from these standards require submission of construction and site plans. EACH HVAC UNIT TO BE SELF-CONTAINED WITHIN EACH DWELLING UNIT. NO PENETRATIONS OF RATED ASSEMBLIES. (Install new 60 tbtu 90% Goodman furnace in the basement for the 1st and 2nd floors. Install 13 seer Goodman AC with matching TXV coil. Run all new ductwork, refrigeration lines, low voltage wiring. For the master bedroom suite installing 12000 btu wall-hung Daikin mini-split)."},{"number":"PP-2023-003144","date":"2023-06-06","work":"New Construction or Additions","type":"Plumbing","description":"Plumbing Permit","status":"Completed","completedDate":"2024-03-22","scope":"Install supply lines and drainage pipes for 2 toilet 1 tub 2 lavatory 1 kitchen sink 1 laundry sink"}],"storyTag":"New construction","storyDelta":1.16,"timeline":[{"y":2021,"k":"viol","w":"L&I violation"},{"y":2021,"k":"insp","w":"Inspection failed"},{"y":2021,"k":"permit","w":"New construction, addition, GFA change"},{"y":2021,"k":"permit","w":"Addition and/or Alteration"},{"y":2021,"k":"permit","w":"Addition and/or Alteration"},{"y":2022,"k":"viol","w":"8 L&I violations"},{"y":2022,"k":"insp","w":"L&I: 4 failed, 2 passed"},{"y":2023,"k":"permit","w":"New Construction"},{"y":2023,"k":"permit","w":"New Construction or Additions"},{"y":2023,"k":"insp","w":"Inspection passed"},{"y":2024,"k":"sale","p":680000},{"y":2024,"k":"insp","w":"Inspection passed"}],"rented":false,"licenses":[],"licenseActivity":[],"businessLicenseSourceDate":"2026-07-25","signals":[{"kind":"permit-mismatch","level":"watch","title":"Assessment/permit mismatch","summary":"The assessment jumped 148% in 2025, but no matching permit appears in the property timeline.","evidence":["assessment moved from $258,900 to $641,900","no permit shown in 2024-2026"],"caveat":"Not proof of unpermitted work; reassessment, corrected data, or a permit under another parcel can also explain it."}],"legalChecks":[{"id":"investigations","level":"verify","title":"Failed inspections are dated events—not the current condition","finding":"5 failed, 4 passed, and 0 CLOSED investigation outcomes are in the fetched history; the latest dated visit was PASSED on Mar 26, 2024.","why":"A PASSED or FAILED value applies to that inspection visit. CLOSED is a separate source status; none of the three alone proves the parent permit or violation case closed—or describes today’s condition.","action":"Open the parent case/permit for each material failure and confirm its later disposition.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections-by-permit-type/"},{"id":"abatement","level":"verify","title":"A reduced taxable assessment is not a verified abatement","finding":"OPA’s numeric assessment fields show a reduced taxable assessment; BlockReport has no official program determination for this parcel.","why":"The numeric treatment can reflect an improvement abatement or another exemption. It does not identify the ordinance, approval, start or end date, or continuation requirements after a transfer. Once OPA verifies a specific active abatement, many common programs attach the benefit to the property for the remaining term rather than ending automatically at sale, but some require a new-owner filing and continued qualifying use or tax compliance.","action":"Obtain the OPA exemption/abatement determination and history, then underwrite the buyer’s bill from the verified program terms.","url":"https://www.phila.gov/services/payments-assistance-taxes/taxes/property-and-real-estate-taxes/get-real-estate-tax-relief/get-a-property-tax-abatement/"},{"id":"violations","level":"clear","title":"No open violation; closed history remains relevant","finding":"The fetched record shows 0 open and 9 historical violations across 4 cases.","why":"A closed case is materially better than an open one, but it does not by itself prove that every altered use, unit, or concealed condition matches today’s approvals.","action":"Use the closed cases to target the inspection and occupancy-file review.","url":"https://www.phila.gov/departments/department-of-licenses-and-inspections/inspections/violation-and-order-types/"}],"closingChecks":[{"title":"Property Sales Certification","body":"The seller must obtain Philadelphia’s certificate showing the base zoning, last use in the zoning record, and open violations. The City warns that it does not prove Building Code occupancy or show zoning overlays.","action":"Obtain the fresh certificate and compare it with the CO, permits, and Atlas overlays.","url":"https://www.phila.gov/services/permits-violations-licenses/get-a-certificate/get-a-property-sales-certification/"},{"title":"Date-effective City Property Payoff","body":"The Tax Center Property Payoff covers Real Estate Tax, Commercial Trash, and L&I abatement-work invoices. Philadelphia says it does not include business-tax debts or liens, water and sewer charges, or fines for code violations.","action":"Request the City statement effective through settlement; read every period and invoice.","url":"https://www.phila.gov/guides/philadelphia-tax-center/what-to-do/"},{"title":"Professional title and water-lien searches","body":"OPA ownership, deed summaries, and a zero tax balance are not clear title. Mortgages, judgments, municipal claims, water liens, easements, heirs, and other encumbrances require separate searches.","action":"Use a Pennsylvania lawyer/title company and obtain owner’s title insurance; order the separate water search/payoff.","url":"https://www.phila.gov/2026-04-07-why-title-insurance-is-your-best-friend-when-buying-a-home-in-philadelphia/","secondaryUrl":"https://www.phila.gov/services/water-gas-utilities/pay-or-dispute-a-water-bill/resolve-water-liens-judgments/"},{"title":"Seller-specific tax relief is not the buyer’s bill","body":"LOOP and low-income or senior Real Estate Tax freezes depend on the qualifying owner and continued program eligibility; a buyer cannot assume the seller’s capped or frozen bill continues. A separately verified property abatement often remains with the property for its remaining term, but program-specific new-owner filing, use, and tax-compliance conditions still must be confirmed—not inferred from the reduced assessment alone.","action":"Have Revenue or OPA identify every current benefit, model the buyer’s bill without seller-specific relief, and confirm any verified abatement in writing.","url":"https://www.phila.gov/services/payments-assistance-taxes/payment-plans-and-assistance-programs/income-based-programs-for-residents/apply-for-the-longtime-owner-occupants-program-loop/","secondaryUrl":"https://www.phila.gov/services/payments-assistance-taxes/taxes/property-and-real-estate-taxes/get-real-estate-tax-relief/tax-freeze/"},{"title":"Seller disclosure and independent inspections","body":"For a covered Pennsylvania residential transfer, obtain the statutory seller disclosure. It reports the seller’s knowledge; it is not a warranty, title search, code review, or substitute for inspections. Because OPA dates this building before 1978, separately obtain the required federal/City lead disclosures and any test results.","action":"Have the agreement and disclosure reviewed for this transaction’s coverage and exceptions.","url":"https://www.pa.gov/agencies/dos/department-and-offices/bpoa/boards-commissions/real-estate-commission"}]}